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Most of the world's paved roads are surfaced with asphalt, which gives good performance and durability under the most heavily trafficked conditions. Asphalt materials are therefore eminently suitable for use in the construction and surfacing of roads in tunnels.
Most of the world's paved roads are surfaced with asphalt, which gives good performance and durability under the most heavily trafficked conditions. Asphalt materials are therefore eminently suitable for use in the construction and surfacing of roads in tunnels.